HIGH-STRENGTH, CORROSION-RESISTANT AUSTENITIC ALLOYS Russian patent published in 2020 - IPC C22C38/58 C22C30/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to high-strength, corrosion-resistant austenitic alloys, and can be used in chemical, mining industry, as well as oil and gas industries. Austenite alloy containing, wt %: up to 0.05 carbon; from 2.0 to 8.0 of manganese; from 0.1 to 1.0 of silicon; from 18.0 to 26.0 chromium; from 19.0 to 37.0 nickel; from 3.0 to 7.0 molybdenum; from 0.5 to 2.0 of copper; from 0.1 to 0.55 nitrogen; from 0.2 to 3.0 tungsten; from 1.0 to 3.5 cobalt; up to 0.6 titanium; total weight content of niobium and tantalum is not more than 0.3; up to 0.2 vanadium; up to 0.1 aluminum; up to 0.05 boron; up to 0.05 phosphorus; up to 0.05 sulfur; total weight content of cerium and lanthanum is not more than 0.1; up to 0.5 ruthenium; up to 0.6 zirconium; balance is iron, trace elements and random impurities.

EFFECT: alloy is characterized by high strength and corrosion resistance.

10 cl, 2 tbl, 10 ex